Designed and manufactured by Lian Li, the Lancool Dragon Lord series "Silent Black" PC-K56 is a mid tower chassis designed for PC game enthusiasts and professionals. It is toolless, all the sharp edges have been removed and has an anti-vibration solution to reduce noise levels. This chassis supports CrossFireX and 3-Way SLI and fits graphics cards up to 290mm long, as wells as 220mm long PS2 power supplies. The PC-K56 comes with cable management. It has a 120mm intake fan in the front, a 120mm exhaust fan at the rear and is ready for liquid cooling. The PC-K56 chassis has 2x USB2.0 ports and HD+AC97 Audio located at the top front for easy access. It has 8x expansion slots, 5x 5.25" drive bays (external) and 4x 3.5" drive bay (internal). It is compatible with ATX and Micro ATX motherboards.